American journal of epidemiology
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Chlamydia trachomatis was isolated from genital specimens from 21 (4.9%) of 431 female college students. Antibody to C. trachomatis was found in the genital secretions of 52 (11.9%) of 437 women. Multiple logistic regression analysis showed race, number of sexual partners, and use of barrier methods of contraception to be predictive of infection with C. trachomatis. ⋯ Women who used barrier methods of contraception also were less likely to have local chlamydial antibody. Women with cervical erythema were more likely to have local chlamydial antibody (4 of 11 (36.4%)) than women without cervical erythema (48 of 426 (11.3%)). Vaginal colonization with other sexually transmitted microorganisms (Mycoplasma hominis, Ureaplasma urealyticum, Trichomonas vaginalis) was noted more often among women with chlamydial infection than among uninfected women.